Sto Gold Fill ® Sto Gold Coat ®
265 Sto Gold Coat®
Technical Data 266 Sto Gold Fill®
TENSILE STRENGTH STRENGTH
Sto Guard Mesh (ASTM D-5035) POST ALKALINE 267 Sto Guard Mesh 4.25”
DESCRIPTION WIDTH OF ROLL LENGTH OF ROLL WARP WEFT SOAK (EIMA 105.01)
268 Sto Guard Mesh 9.5”
Sto Guard Mesh 4.25” (11 cm) 150’ (45.7 m) 150 165 >120
– 4.25” Division 7
Sto Guard Mesh 9.5” (24 cm) 150’ (45.7 m) 150 165 >120
– 9.5” Sto Gold Fill ® is a ready-mixed, flexible,
joint compound, air barrier material. It is
applied to rough openings and sheathing
Sto Gold Fill® & Sto Gold Coat® joints in walls.
TEST METHOD CRITERIA RESULTS
Sto Guard Mesh is a glass fiber self-
Aging/Water AATCC 127 Resist 21.6 in (55 cm) No water penetration before and
Penetration Resistance (Water Column) water for 5 hours before after aging. No water penetration at adhesive mesh for use with Sto Gold
and after aging. 332 inches (845 cm) head of water Fill ®.
Sto Gold Coat ® is a ready-mixed flexible
Structural Loading/ ASTM E 1233/ No water at exterior plane of sheathing . No water penetration
Water Penetration ASTM E 331 (exterior gypsum, Dens-Glass® Gold,
coating. It is applied directly to wall
Testing plywood, OSB) after 10 cycles @ 80% sheathing and functions as a water-
design load and 75 minutes water proofing/air barrier when combined with
spray at 6.24 psf (299 Pa) pressure Sto Gold Fill ®.
differential with water spray rate of
5 gal/ft2·hr (3.4 L/m2·min) All three form the Sto Guard ® Assembly,
Cyclic Pressure/Water ASTM E 283/ No water penetration or evidence of No water penetration, no a liquid applied building wrap that offers
Penetration Testing ASTM E 331 elevated moisture levels in plywood elevated moisture levels a superior water-proofing/air barrier.
sheathing after 10 cycles of conditioning Sto Guard ® can be used beneath various
at 299 Pa (6.24 psf) positive and negative claddings including brick, wood, vinyl,
pressure followed by 75 minutes water
spray at 6.24 psf (299 Pa) pressure
or fiber/cement sidings; and as part of
differential with water spray rate of Sto EIFS NExT ®; and with a wide variety
5 gal/ft2·hr (3.4 L/m2·min) of gypsum, cement or wood based
Water Resistance Testing ASTM D 2247 Absence of deleterious effects No deleterious effects sheathing substrates.
after 14 day exposure after 14 day exposure
Resistance to Mold Growth ASTM D 3273 No mold growth after 28 days No mold growth after Features & Benefits
28 day exposure
Freeze/Thaw Resistance ICBO Method No visible effects (cracking, No visible deleterious effects Reduces risk of condensation caused by air
(AC 24) checking, delamination, at 5x magnification leaks through the wall construction;
erosion) when viewed at 5x reduces energy costs by reducing
Water Vapor Transmission ASTM E 96 Measure Sto Gold Fill®: 17.3 perms heating/cooling loads
Method B [994 ng/(Pa·s·m2)]
(Water Method) Sto Gold Coat®: 5.7 perms Waterproof coating for sheathing
[327 ng/(Pa·s·m2)] Minimizes risk of water damage to sheath-
Air Leakage: ASTM E 283 <0.06 cfm/ft2 @ 1.57 psf 0.0044 cfm/ft2
ing and associated repair or replacement
Wall Assembly w/Sto Gold (SBCCI PST & (0.00030 m3/s·m2 @ 75 Pa) (0.000022 m3/s·m2) costsle
Fill® & Sto Gold Coat® ESI Method)
Air Leakage: ASTM E 283 < 0.003 cfm/ft2) @ 1.57psf < 0.0002 cfm/ft2 Moisture does not get trapped in the wall
Sto Gold Fill® (CCMC Technical (< 0.02 L/s·m2 @ 75 Pa) (< 0.0014 L/s·m2) cavity
Air Leakage: ASTM E 2178 < 0.003 cfm/ft2) @ 1.57psf < 0.0002 cfm/ft2 Structural
Sto Gold Fill® (CCMC Technical (< 0.02 L/s·m2 @ 75 Pa) (< 0.0014 L/s·m2) No air leakage or moisture intrusion
Guide Method) between the sheathing and Sto Guard; rigid
and stable under air pressure loads; does
Structural Integrity ASTM E 330 2 inches (51 mm) water pressure No loss of structural integrity
not tear or blow off the wall with wind
(positive and negative) for 1 hour
Dry Tensile Strength ASTM D 882 20 lbs/in (3503 N/m) minimum Sto Gold Fill®: Seamless
before and after aging 159 pli (27.8 kN/m) before aging No tears, holes, or mislapped joints that can
213 pli (37.3 kN/m) after aging compromise performance in service
Flexibility ASTM D 522 No cracking or delamination using No cracking or delamination before
1/8” (3 mm) mandrel at 14º F (-10º C) and after aging
before and after aging Does not tear or lose its effectiveness with
exposure to weather during construction or
Tensile Adhesion ASTM C 297 >15 psi (103 kPa) Gypsum (ASTM C 79): while in service
>30 psi (206 kPa)
Gypsum (ASTM C 1177): Resists UV Degradation
> 30 psi (206 kPa) Gives peace of mind if construction delays
Exposure 1 OSB: occur
> 50 psi (344 kPa)
Exterior Plywood: Liquid formulation – Water Based
> 90 psi (620 kPa) Safe non-toxic, VOC Compliant; saves time
Surface Burning ASTM E 84 Flame Spread: <25 Flame Spread: 5 and money when installing the product;
Smoke Developed: <450 Smoke Developed: 10 does not require highly skilled labor
NFPA Class A, UBC Class 1
Fire Testing UBC 26-9 No increase in fire hazard Pass
*Dens-Glass Gold is a registered trademark of G-P Gypsum Corp.
**100% failure of substrate
265 Sto Gold Coat®
266 Sto Gold Fill®
267 Sto Guard Mesh 4.25”
268 Sto Guard Mesh 9.5”
Coverage Sheathing joints, rough openings, and corners must then conditions exist for prolonged periods. Cool, damp condi-
Sto Guard Mesh 4.25” (11 cm) x 150 ft2 (45.7 m) be covered with Sto Guard Mesh and Sto Gold Fill®. tions retard drying and may require extended periods of
Sto Guard Mesh 9.5” (24 cm) x 150 ft2 (45.7 m) Substrate to receive the second coat of Sto Gold Coat® protection.
must be continuous without joints, holes, etc. exceeding
Sto Gold Fill®: One pail will treat approximately Do not use on damp surfaces, below grade, or on surfaces
1/32" (0.8 mm) in size. The second coat of Sto Gold
175-250 linear feet (53-76 m) of sheathing joints and subject to water immersion. Do not use over pressure
Coat® must be applied over the treated surface in a sin-
rough openings. Coverage may vary depending on appli- treated or fire retardant treated wood surfaces. Not rec-
gle, uniform coating to a wet thickness of 10 mils.
cation technique, sheathing type, the size of sheathing ommended for spanning sheathing joints or holes in
joints and the number and condition of rough openings. Installation over Concrete Masonry Wall excess of 1/8" (3 mm) wide.
Sto Gold Coat®: Sto Guard Mesh: High humidity or adverse weather may
Concrete masonry must be clean, dry and free from
Dens-Glass® Gold: 425-525 ft2 (39-49 m2) per pail result in loss of adhesion prior to application of Sto Gold
damage, frost, and all bond-inhibiting material, including
Exterior Gypsum: 550-650 ft2 (51-60 m2) per pail Fill®. Immediately cover with Sto Gold Fil®l to prevent
dust, dirt, mold, algae and efflorescence. Repair shrinkage
Plywood: 550-650 ft2 (51-60 m2) per pail loss of adhesion. Avoid contact with dirt and debris which
cracks up to 1/8 inch (3 mm) wide by centering Sto Detail
OSB: (2 coats): 300-400 ft2 (28-37 m2) per pail will cling to self-adhesive side of mesh. Not for use on
Mesh over the crack and embedding in Sto Gold Fill®.
CMU: (2 coats): 250-400 ft2 (23.1-37 m2) per pail concrete or masonry surfaces. Use Sto Detail Mesh
Rake the crack with a sharp tool to remove loose or fri-
Coverages may vary depending on application able material, and blow clean with oil free compressed air. embedded in Sto Gold Fill for these surfaces.
technique and surface conditions. Apply Sto Gold Fill® by spray or trowel over the crack. For complete information refer to Sto Guard Air Barrier
Depending on the straightness of the crack use 4 inch and Moisture Control Handbook.
Packaging (101 mm) or 9 inch (152 mm) wide Sto Detail Mesh to
Sto Gold Fill®: 5 gal. pail (19 L) allow approximately 2 inches (51 mm) of mesh on each
Sto Gold Coat®: 5 gal pail (19 L) side of the crack. Immediately embed Sto Detail Mesh Health & Safety
Shelf Life mesh in the wet material and trowel smooth. For cracks Health Precautions
12 months, if properly stored and sealed. wider than 1/8 inch (3 mm) and up to 1/4 inch (25 mm) Products are water-based. As with any chemical
wide use a paintable acrylic latex caulk to fill the crack construction product, exercise care when handling.
Storage and tool flush with the surface. For moving cracks, consult
Protect from extreme heat [90º F (32º C)], freezing and a structural engineer. Do not use Sto Guard materials to Safety Precautions
direct sunlight. repair moving cracks or cracks wider than 1/8 inch (3 Use adequate ventilation. Safety goggles and
mm). Do not use Sto Guard Mesh (“self stick”) to repair protective gloves are recommended. Remove
Surface Preparation cracks in concrete. Protect crack repair materials from rain contaminated clothing immediately.
Surfaces must be clean, dry, and free of frost, damage and and freezing until dry.
all bond-inhibiting materials, including dirt, efflorescence, First Aid
form oil and other foreign matter. Damaged sheathing For air and moisture barrier: Fill the masonry wall surface SKIN CONTACT: Wash thoroughly with soap and water.
must be removed and replaced. Avoid application over with minimum one coat of Sto BTS Plus, Sto Primer/ EYE CONTACT: Flush immediately with water for
irregular surfaces. Substrate to be coated must be continu- Adhesive-B, Sto BTS Silo or Sto Leveler, applied by spray 10-15 minutes and contact a physician.
ous without joints, holes, etc. exceeding1/32" (0.8 mm) in or trowel. Protect from rain and freezing until dry. RESPIRATORY PROBLEMS: Remove affected person to
size. Sheathing must be properly installed as required by Additional coats may be necessary depending on the fresh air immediately and contact a physician.
applicable building codes or sheathing manufacturer. condition of the CMU surface. Apply Sto Gold Coat® by HYGIENE: Wash hands immediately after use. Wash cloth-
spray or roller over the surface to a uniform wet mil thick- ing before re-use.
Mixing ness of 8-10 mils in one coat. Use a 1/2 inch (51 mm)
Spills: Collect with a suitable absorbent material such as
Mix with a clean, rust-free electric drill and paddle to a nap roller.
uniform consistency. PRODUCTS MUST NOT BE THINNED For moisture barrier only: Apply Sto Gold Coat® by spray
OR DILUTED. or roller over the surface, including the dry crack treat- Disposal: Dispose in accordance with local, state and
ment, to a uniform wet mil thickness of 8-10 mils. Use a federal regulations.
Apply only to sound and clean, dry, properly prepared, frost- 3/4 inch (19 mm) nap roller. Apply a second coat of Sto Warning
free surfaces. Gold Coat® by spray or roller over the first coat to a uni- KEEP CONTAINER CLOSED WHEN NOT IN USE. KEEP OUT
form wet mil thickness of 8-10 mils. OF REACH OF CHILDREN. NOT FOR INTERNAL CONSUMP-
Installation over Sheathed Wall Construction: Place
minimum 4 inch (101 mm) wide mesh at sheathing joints Protect from rain and freezing until dry. TION. FOR INDUSTRIAL USE ONLY. Consult the Material
and minimum 9 inch (152 mm) wide mesh at rough open- Safety Data Sheet for further health and safety informa-
Material Storage tion.
ings and inside and outside corners (refer to Sto detail Keep containers covered to protect from skinning. If skin
20.23a).Immediately apply Sto Gold Fil® by spray or trow- forms, remove the skinned material from container; LIMITED WARRANTY
el over the mesh and trowel smooth. Protect from rain remaining material is unaffected by skinned material. THIS PRODUCT IS SUBJECT TO A WRITTEN LIMITED WAR-
and freezing until dry. Spot fasteners and surface defects RANTY WHICH CAN BE OBTAINED FREE OF CHARGE
with Sto Gold Fill®. Curing and Drying FROM: Sto Corp., 3800 Camp Creek Parkway, Building
Sto Gold Fill® is dry to touch and can be overcoated with- 1400, Suite 120, Atlanta, GA 30331; Tel: 404-346-3666;
Sto Gold Coat®: Over Exterior Gypsum Sheathing,
in 4 hours under normal [70º F (21º C), 50% RH] condi- Fax: 404-346-3119.
Dens-Glass® Gold, Exterior Plywood: Apply Sto Gold
tions. Sto Gold Coat® is dry to touch and can be over-
Coat to the prepared substrate using spray equipment
coated within 2-4 hours under normal conditions. Wait 24 Sto Corp.
such as Sto’s M-8 Spray Pump, or Grayco TEX spray equip-
hours before adhesive attachment of Sto insulation board. 3800 Camp Creek Parkway
ment: GTX 2000 or RTX 1500, or with the appropriate
size nap roller in a single, uniform coating at a wet thick- Final drying varies depending on temperature/ humidity Building 1400, Suite 120
ness of 10 mils. Application over G-P Dens-Glass® Gold and surface conditions. Protect from rain and freezing until Atlanta, GA 30331
sheathing: use 3/4" (19 mm) nap roller. Application over completely dry. Tel: 404-346-3666
plywood and exterior gypsum sheathing: use a 1/2" (13 Toll Free: 1-800-221-2397 100% ACRYLIC www.airbarrier.org
mm) nap roller. Clean Up Fax: 404-346-3119 POLYMERS
Clean tools and equipment with water immediately after www.stocorp.com
Sto Gold Coat®: Over Oriented Strand Board use. Dried material can only be removed mechanically.
(OSB): A two-coat application of Sto Gold Coat® is S155-265/266/267/268 09/04 VEN 5609
required over OSB. The first coat is applied over the pre- Limitations
pared substrate prior to treating sheathing joints, rough Sto Gold Coat® and Sto Gold Fill®: Apply only when
openings, and corners. Apply Sto Gold Coat® by spray or the surface and ambient temperatures are above 40° F
roller with a 3/4" (19 mm) nap roller in a single, uniform (4° C) and below 100º F (38º C) during application and
coating at a wet thickness of 10 mils and allow to dry. drying period. Not recommended for use when cool, damp